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ACI-ASTM CN7MS Steel vs. SAE-AISI 1022 Steel

Both ACI-ASTM CN7MS steel and SAE-AISI 1022 steel are iron alloys. They have 50% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7MS steel and the bottom bar is SAE-AISI 1022 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
150 to 160
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
17 to 26
Fatigue Strength, MPa 200
190 to 300
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Tensile Strength: Ultimate (UTS), MPa 540
480 to 550
Tensile Strength: Yield (Proof), MPa 230
260 to 450

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 1040
400
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
52
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 28
1.8
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 5.1
1.4
Embodied Energy, MJ/kg 71
18
Embodied Water, L/kg 180
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
88 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
190 to 530
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 19
17 to 19
Strength to Weight: Bending, points 19
17 to 19
Thermal Diffusivity, mm2/s 3.2
14
Thermal Shock Resistance, points 13
15 to 17

Alloy Composition

Carbon (C), % 0 to 0.070
0.18 to 0.23
Chromium (Cr), % 18 to 20
0
Copper (Cu), % 1.5 to 2.0
0
Iron (Fe), % 45.4 to 53.5
98.7 to 99.12
Manganese (Mn), % 0 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 2.5 to 3.0
0
Nickel (Ni), % 22 to 25
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 2.5 to 3.5
0
Sulfur (S), % 0 to 0.030
0 to 0.050